20% of tax revenues go directly to paying off the national debt.
Any budget that projects more spending than revenues goes directly back to Congress with a clear mandate: they can either decide to raise taxes or they can decide to cut programs. If you want a government program, you need to pay for it. Deficit spending is like living on credit cards: it lets you have a really nice lifestyle, but soon enough you find yourself making minimum payments and ignoring the phone.
For every dollar spent on the military, foreign aid, and welfare programs, there would be at least one dollar spent on things with direct domestic benefit – maintaining and building transportation infrastructure, energy research with an eye towards eliminating our dependence on foreign oil, support for early childhood education and scientific research.
Every security measure proposed by the TSA would be vetted by actual security experts such as Bruce Schneier. Proposing one bit of security theater that actually makes things less secure—the idiotic RFID in passports, most of the antics of the TSA in airports—would be cause for dismissal.
For that matter, proposing that the President do something clearly in contravention of the Constitution—warrantless wiretapping, holding people indefinitely without a trial—would also result in immediate dismissal.
These are not things that are likely to get me elected President.